Sykes joined Huawei in early 2012 from Alcatel-Lucent and effectively operated as the company's chief public relations executive after the departure of Ross Gan.

It is understood that Sykes is to return to the US, after spending almost a decade in Asia. In addition to his stints at Huawei and Alcatel-Lucent, Sykes also spent three years at Weber Shandwick in China.

"During his tenure, Scott successfully led his team to strengthen the company’s relationships and communication efforts with international media and other stakeholders," said the spokesman. "We are extremely appreciative for his contributions to the company and wish him all the best in his future endeavors."